The general rule is: brush, soak and brush again. Always clean your denture over a bowl of water or a folded towel in case you drop it. Brush your denture before soaking them, to help remove any bits of food. Using an effervescent (fizzy) denture cleaner will help remove stubborn stains and leave your denture feeling fresher - always follow the manufacturer's instructions. Then brush the denture again, as you would your own teeth, being careful not to scrub too hard as this may cause grooves in the surface.
Daily cleaning of dentures is recommended. Plaque and tartar can build up on false teeth, just as they do on natural teeth.[24] Cleaning can be done using chemical or mechanical denture cleaners. Dentures should not be worn continuously, but rather left out of the mouth during sleep.[25] This is to give the tissues a chance to recover, and wearing dentures at night is likened to sleeping in shoes. The main risk is development of fungal infection, especially denture-related stomatitis. Dentures should also be removed while smoking, as the heat can damage the denture acrylic and overheated acrylic can burn the soft tissues.
Teeth can fall out for a number of reasons, ranging from genetics to drug abuse. Most commonly, teeth are removed or fall out on their own due to severe tooth decay. Neglect to upkeep oral hygiene or not seeking proper treatment for damaged teeth, can lead to the onset of decay which in turn leads to loss of teeth. Visiting you dentist in 6 month intervals is a good preventive measure to spot any early signs of decay.